Episode 2 of 3

Crossing the Columbia Bar

When
May 12, 1792
Where
Columbia Bar
Part of
Discovery of the Columbia River Mouth

On May 12, 1792, Gray crossed the hazardous Columbia Bar, becoming the first known explorer of European descent to enter the river.

Following the entry into the estuary, Gray returned south on May 12 to cross the Columbia Bar, a shifting sandbar known for hazardous navigation. This act confirmed the river's navigability, contradicting earlier doubts by British Captain George Vancouver.

Sources

  1. Columbia River Wikipedia, revision of 2026-09-25
  2. Robert Gray's Columbia River expedition Wikipedia

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.